Cable hook



Dec. 21 1926. 1,611,721

' M. COX

CABLE HOOK Filed March 24 A 1925 STATES INIACKNEELE COX,

RATE, FFECE,

Pfl-NOR ONE-HALF TO Application filed March 1925.

rlhis invention relates to a cable hook, designed primarily for use in connection with ruine car .motors mining machines with which is customary to employ a reel, but it to be iii-icerstood that a cable hoolr, in

accordance with this invention, can he eniployed iter any purposes wherein it is round applicable, and the invention has for its ohject to provide, in e inanner as hereinafter set lic/lith, a yieldahle oit the fuse type, which is tively insulated tor the protection ot the operator, overcomes the application ot' sudden jerks to the reel when starting the car or machine, under 'uch conditions preventing injury to the reel, prevents sudden tens an on the cahle which otherwise would in ict injury to or perhaps the breakage thereof, and `further preventblow-outs. Y urther objects of the invention are to provide, in a manner hereinaiiter set forth, a yieldahle cable hoes ot the 'inse type for gn'otecting` the athering cable, reel and controller ot electiic motors and coal cutting machines, and which is siinple in its construction and arrangement, strong, durable, compact, thoroughly er'ilcient and convenient in its use, and comparatively inexpensive to manufacture.

llith the foregoing and other' objects in view, the invention consists of the novel construction, combination and arrangement of parts, hereinafter more speciticalhT described and illustrated in the aceon'ipanying drawings, wherein is shown an embodiment or' the invention, hut it is to be understood that changes, ifariations and inodiiications can be resorted to which corne within the scope ot the clainis hereunto appended.

In the drawings wherein like reference characters denote corresponding parts throughout the several views Figure 1 is a vertical sectional View of a cable hook, in accordance with this invention.

Figure 2 is a fragmentary view in vertical section, oi the hook upon an enlarged scale.

Ficure 3 is a section on line 33, Fig- -ure 2. Lg' i Figure 1l is a section on line 1e-4l, Fig

ure 8.

Figure 5 is a section on line 5 5, Figure 8.

Figure 6 is a plan View, 1n section, illustrating the locking inenihers for one end the luse in open position.

Figure i' is a disassembled view of the corelating parts providing a loch for one end ot the :'r'use.

Figure 8 is a perspective view ot a pair el? locking nienihers, in closed position.

Referring to the drawings in detail, a yieldahle cab-le hook, in accordance with thisl invention, comprises a cylindrical outer casing' ot insulation consisting of a hody portion l having an open top 2 and a bottoni fl iiorn'ied with an opening l. Integral with the bottoni` 3 is a hollow reduced extension i?, provided with a closed outer end G and with a pair of al Ining flaring openings 7 in a pail ot oppos sides thereof. The inner face ot the extension 5 is liush with the wall ot the opening el, and sa'd extension 5 is tor-ined ot the saine material as the body portion 1.

Arranged within the outer casing, as well as extending ahove the open end of the hody portion 1, is an inner cylindrical, sectional casing lfoi'n'ied of non-conducting material. Thn inner casing .is seated on the bottoni 3 ot the outer casing and consists of an upper section 8, a lower section 9 and intermediate sections 10, 11 and 12. The section 8, which extends ahove the outer casing, has the pe` riphery oft its extended portion threaded, as at 13, and the extended portion of the section 8 is open. The lower terminal portion of the section S is reduced in thickness, as at 14, 15 and 1S. The part 111 is provided with internal threads, the inner face or' the part 15 is plane, and the inner face of the part 1G threaded.

The upper terminal 1portion of the section 11 is reduced in thickness, as indicated at l?, thereby providing an internal shoulder' 18, which constitutes a seat. he lower terminal portion of the section 11 is reduced in thickness, as indicated at 19, therehy providing an internal shoulder which forms a seat. rlhe section 10 has the upper part ot its periphery threaded and the lower part plane. The threaded part et the section 10 extends into the lower end ot the section 8 and tln'eadedly engages with the reduced part 16 of said section 8. The lower part of the section 10 extends into the reduced upper terminal portion et the section 11 and is inounted on the seat 18. The lower part oll the section 10 is secured to the reduced part 17 of the section 11 by the hold-fast devices 21.

The section 9 has its lower end formed with an inwardly extending annular' flange 22, which seats on the bottom 3 o1e the outer casing, and the inner tace of the section 9 is threaded. The upper end of the section 9 abuts against the lower end o'f the section The section 12 has the upper part ot its periphery plane and the lower part thereof threaded. The section 12 extends into the lower end of the section 11 and abuts against the shoulder 20, and further is connected to the lower end of the section 11 by the holdfest devices 21. The section 12 extends into the section 9 Vand threadedly engages therewith.

The upper end of the outer casing and section 8 of the inner casing are closed by a cap 24 of insulation, which threadedly engages with the threads 13 and `buts against the top edge of the outer casing. The cap 24 is formed with a centrally disposed opening 25.

Arranged within the casing and threadedly engaging with the part 14 of the section 8 is a contact block 26, formed with a ldiametrically extending groove 27 in its upper face and provided on its lower tace with a depending contact rib 28.

Arranged within the sections 10, 11 and 12 of the inner casing, is a laminated fuse 29 and each lamination thereof is oi' like construction and is formed with an inclined intermediate portion 30, an upper end portion 31 and a lower end portion 32, and the inclined intermediate portion oilsets the upper end portion 31 with respect to the lower end portion 32, so that the upper end portion 31 will extend in a plane parallel to the plane of the lower end portion The upper end portion ot the fuse is ar-V ranged in the section 10 and the lower end portion in the section 12.

Associated with each end portion of the fuse 29 is a conducting head and each of which consists oit a disk 33, having one face provided with an apertured lugl 34 and its other face with a reduced neck 35. he heads are oppositely disposed with respect to each other, and the lug 34 ot one of the heads is connected to the upper end portion 31 of the fuse by a hold-fast device 36, and the lug 34 oi the other head is connected to the lower end portion 32 ot the tuse by the hold-fast device 37. That head which is connected to the end portion 31 or' the ruse 29, has formed integral with the neel: 35 thereof a cylindrical contact 33 of less diameter than the disk 33 of such head. rhat head, which is connected to the lower end 32 of the fuse 29, has depending trom the neck 35 thereof a combined contactand cin-- pling member 39 ot greater length tha the contact 33. The member 39 extends through the flange 22, opening 4 and completely lille the extension 5. The member 39 is formed with a passage 40, which registers with the opening 7 formed in the extension 5. The disk 33 o1" each of said heads is oi less diameter than the sections 10 and 12, and the disk of the upper head is positioned within the upper end ot' the section 10 and the disk of the lower head is positioned within the lower end of the section 12.

The upger head is locked to the section 10 and the lower head to the section 12. he upper end ci the section 10 is provided with a pair oic diametrically opposed notches 41` and the lower end of the section 12 is formed with a pair of diametrically opposed notches 42. rllhe notches 41'and 42 cooperate with the locking devices for the heads of the fuse. As each of the locking devices is of the same construction, but one will be described, as the description otl one will apply to the other.

Each locking device comprises a collar 43 adapted to surround the Contact 33 or the member 39. The collar 43 is formed with diametrically opposed sockets 44, in which are seated pivots 45, each extended from one end ot an arcuate-shaped locking member 46. Each of said members 46 is formed with a locking pin 47, intermediate its ends, and on that tace opposite the tace from which projects the pivot 45. The outer edge of each locking member is notched as at 48, to acilitate the opening' movement o1c said members. rThe locking pins 47 of each pair of members coact with a pair of notches 41 or 42 for maintaining' the fuse head in locked position. Each pair of locking members surrounds a neck 35 of a fuse head. The lockmembers 46 of each pair project bevond the edge of the disk 33 when the locking Ymembers are in closed position, see Figures 4 and 5, and when in open position are swung outwardly7 on the collar 43, see Figure 6.

Exetending through the opening 25 is ahook element consisting of a substantially elongated shank 49, provided at its outer end with a hook 50 and at its inner end with a tapered contact head 51 which engages in the groove 27 of the Contact 26. rl`he shank 49, intermediate its ends, carries a sliding collar 52. That portion ot the shank 49, within the inner casing, carries a pair of cont-rolling springs 53, 54. rlhe former is interposed between the collar 52 and the cap 24, and the latter etween the collar 52 and the Contact head 51. rlhe springs 53, 54, collar 52, cap 24 and contacting head 51 provide a resilient or yieldable coupling or cushion between the hook element and the cable 55, which is attached to the member 39 and extension G, when the hook element is connected to the conductor 56 and it is this resilient or yield able coupling or cushion which overcomes sudden jars on the reel. rl`he cable is ei:- tended through the passage Ai() and openii p 7 and secured together as at 57 to provide a loop connection 58 with the outer casing' and member 39.

The hook 50 is so formed as lo enable itl to be quickly connected to and removed 'Vroni the conductor 56 when desired, and for sach purpose the back ot the hool, as well as the bill thereof is disposed at opposite inclinations.

The outer casing and cap ft hein of insulation material throughout fectively protect the operator when the outer casing to connect w' ductor 56. The length oit the is to be materially greater tha oit the hand ot' the operator.

if the cable 57 is of the insulated ty l tion of its length is bared so that contact can be had with the member It is thought that the many Lmanta ces of a yieldahle cable hook ot the ruse type, in accordance with this invention.. can be readily understood, and filth-ouch the preferred embodiment of the invention is illust and described, yet it is to be understood that changes in the details of construction can be had which will tall within tne scope of the invention as claimed.

lvhat I claim is l. A cable hook for the purpose set forth comprising an outer casingI oit' insulation, an inner casing formed of a series ot interengaging sections, a 'fuse arranged within the lower portion of said ii ,i casing and including an upper and a lover cond cting head, said lower head ei:tending into said outer casing, a yieldable hoolt element e:;- tendinginto said inner casiin;l and provided at its inner end with a Contact head, contact block within and threadedly engaging with the sectional casing and interposed between the head ot said element and said upper conducting head, said lower conducting' head and outer casinghaving registering means tor coupling a cable therewith.

2. A cable hoolr tor the purpose set torth comprising an outer casing ot' insulation, inner casing` formed oit a series ot i erengaging sections. a fuse arranged within the lower portion of said inner casing and including` an upper and a lower conducting head, said lower he d extending into said outer casing, a yield `ie hook element ei;- tending into said inneil casing and provided at its inner end with a contact heathr a contact block within and threadedly eno @ing with the sectional casingl and interni tween the head of said elen'ient ainL per con'ductinO' head.l said lower cor` head and outer casing having ref tering means for coupling a cable therewith, and a releasable locking device tor each ot said .conducting heads, said devices when in locking position engaging with said inner casing.

S. A cable hook for the purpose set forth con'iprising an outer casing of insulation, an inner casing formed of a series ot interen- Wing' sections, a fuse clement arranged thin the inner casing and extending into the outer casing, means engaging with the inner casing i''or detachably lool-ring the fuse element therein, a contact block' arranged within and threadedly engaging with the sc"tional casing and electrically engaging vi ai the upper end of the fuse element, a hook element extending into said inner casing, cushioning means carried by the hool; element, said cushioning means maintaining the Jfuse element in electrical Contact with said contact block, and said outer casingand iluse element having registering means for coupling a cable therewith.

A cable hook for the purpose set torth comprising an inner and an outer casing, said inner section formed of a series of inte engaging sections.y said outer casing formed throughout of insulation, a fuse element arranged within the sectional casing and provided with a contact member extending` into the lower end of' the outer casing, a Contact block arranged within and secured to the inner face of the sectional casing and electricallyT contacting with said fuse element, a hook element extending into said inner casing and provided at its inner end within the casing with a contact head eniging said block, cushioning' means carried and contact member having' registering means for coupling a cable therewith.

A cable hook for the purpose set forth comprising an inner and an outer casing. said inner section formed of a series of interengaging sections, said outer casing formed throughout of insulation, a fuse element arranged within the sectional casing and provided with a contact member extending' into the lower end of the outer casing, a contact block arranged within and secured to the inner face ot the sectional casing and electrically contacting with said fuse element, a hook element extending into said inner casing and provided at its inner end within the casing with a contact head engagingl said block, cushioning means carried by said hook element, said outer casing and contact member having' registering means for coupling' a cable therewith, and means engagingwith each end of the tuse element and further engaging in the outer ends of a pair ot sections ot the inner casing for detachably locking the t'use element in said casing.

A cable hook for the purpose set forth comprising an outer casing of insulation, an inner casing ot non-conducting material extended trom the upper end of the outer casing, a fuse arranged Within the lower portion olf said inner easing,l and including a pair of conducting heads, one of said heads prodee ith a Contact member extended 'from tlv i 1r 'asing-into the outer casing` and the other or' said heads provided With a eontaer positioned Within the inner easing, a Contact block arranged Within the inner easing; and engaging said Contact a hoolr element extending into said inner easing' and provided at its inner end Within the easing with a eentaet head engaging said bloeli, cushioning means carried by said element, and means engaging* with the extended part oi said inner easing and sui-rouriding` seid elemen for eoniinineg'said cushioningl means and for closing said outer easing, said outer easing and contact member having registerino' means for eouplino' a cable therewith.

i'. fr Cable hook for the purpose se's forth eoniprisine an outer Casing or insulation, an

inner easing or non-condiretingI material ero tended rom the upper end o'i the outer easing;T a ruse arranged Within the lower portion orn said inner easing and including a pair ot Conducting,` heads7 one or" said heads provided with a eontaetmember extended from the inner easing into the outer easinso and the other or said heads provided with a. Contact positioned Within the inner easing, a Contact block arranged Within the inner easing;` and engaging said Contact, a hook element extending into said inner easin` and provided with a Contactl head engaging said block, cushioning means Carried by said element, means engaging with the extended part of said inner easing and surrounding,l

said element for confining said cushioning" means and for closing said outer casing, said outer easing,` and Contact member having registering means Jror coupling a cabletherewith, and means mounted on said conduct heads and engaging into the inner easor detaehably locking said ruse to said easing.

8a A Cable hook ior the purpose set forth comprising a laminated fuse body provided at each end With a conducting` head, a seebody mounted therein and provided at eachV end with a conducting head7 a spring controlled conducting element extending-DY into said easing, electrically connected with one of said heads and'iormed with a hook at its outer end, and said other head having means Yfor connecting` a cable therewith exteriorly or said easing, the Controlling spring for said element arranged Within said easing,

ln testimony whereof, l siii); my signature hereto.

MACKNEELE COX. 

